Rob Murray
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Black tenorite in a cyan Chrysocolla matrix. Tenorite is a copper oxide, sometimes called black copper. Minerals intergrow like this in hydrothermal deposits with volcanic sublimate.

TENORITE Black tenorite in a cyan Chrysocolla matrix. Tenorite is a copper oxide, sometimes called black copper. Minerals intergrow like this in hydrothermal deposits with volcanic sublimate.

Auralite - 23 is the name given to a chevron form of Amethyst from the boreal forest area of Canada.

This is a much better photo to see its incredible beauty. I have the honor of having 1 of these Angelic communicators. Auralite - 23 is the name given to a chevron form of Amethyst from the boreal forest area of Canada.

Dumortierite

The great majority of rocks are made of silicate minerals and include benitoite, chlorite, eudialyte, kyanite, and lazurite.

What Is My Blue or Purple Mineral?: Cordierite

Purple rocks are actually minerals and their color can range from blue to violet. Discover the 12 most common purple, blue, and violet minerals.